<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <style>
    * {
      padding: 0;
      margin: 0;
    }
    .app {
      height: 100vh;
      width: 100vw;
    }
    .head {
      background-color: skyblue;
    }
    .container {
    }
    .container .aside {
      background-color: grey;
    }
    .container .main {
      background-color: bisque;
    }
    .container .right {
      background-color: grey;
    }
    .footer {
     
    }
  </style>

  <body>
    <div class="app">
      <div class="head">head</div>
      <div class="container">
        <div class="aside">aside</div>
        <div class="main">main</div>
        <div class="right">right</div>
      </div>
      <div class="footer">footer</div>
    </div>
  </body>
</html>
